基于“肺阳虚”探析支气管哮喘的发病机制

Pathogenesis of Bronchial Asthma Based on“Deficiency of Lung Yang”

支气管哮喘是目前最常见的慢性呼吸道疾病。中医认为哮喘的主要病理因素便是痰,痰凝聚伏藏于肺,则成为发病的潜在“夙根”。形成原因是素体肺气不足,津液不能正常宣散敷布,不能通调水道,易酿湿成痰,痰饮内伏。《素问·阴阳应象大论》中提到“阳化气,阴化形”,提示肺气的不足其根源便是肺阳的不足。以“肺阳虚”为基础,发现肺阳虚无力温化寒痰,哮喘之“夙根”由此产生;肺阳虚导致肺卫不固,无法抵御外邪入侵肺腑,诱发哮喘发作;肺阳虚无以化气,无法正常宣发肃降、通调水道,累及脾肾,形成哮喘缓解期的本虚标实之证。由此进一步探讨“肺阳虚”与哮喘的发病认识。

Bronchial asthma is the most common chronic respiratory disease.TCM believes that the main pathological factors of asthma is phlegm,phlegm coagulation hidden in the lungs,then become the incidence of the potential“root”.The cause of formation is the deficiency of lung Qi,body fluid can not be normally spread,can not beunobstructed waterway,easy to brew wet into sputum,phlegm drink.《Su Wen·Yin Yang Correspondence Phenomenon》mentioned:yang transforming into qi while yin constituting form,which Suggests that the root cause of the deficiency of lung Qi is the deficiency of lung Yang.On the basis of“deficiency of lung Yang”,it is found that deficiency of lung Yang is incapable of warming up cold phlegm,resulting in the“root”of asthma;deficiency of lung Yang leads to weak lung defense and can not resist invasion of exogenous pathogen,inducing asthma attack;deficiency of lung Yang has no way to change Qi,thus failing to normally spread,dredge and regulate water channels,involving spleen and kidney,thus forming the syndrome of deficiency and excess in asthma at the remission stage.Therefore,the pathogenesis of asthma and asthma was further discussed.